Varnish-cap and the like.



H. E. TOWNSEND.

VARNISH CAP AND THE LIKE,

APPLICATlON FILED APR. 11. $917.

Patented Apr 23, 1918.

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11:11 E. a satin, or nnoorrnvn", new roman, assrsnon ro nncnon car a GLOSUE CORPORATION, OF BROOKLYN, NEW YORK, A CORPOTION OF NEW w 1 ISH-CAP D THE LIKE.

Specification 01 Letters Patent.

Patented n t. es, mi.

Application filed April 11, 1917. Serial Ito. 161,177.

v adapted to be secured to a container.

The principal object of the present invention is to rovide an article of manufacture comprislng a neck or spout provided with a sealed cap in such manner that the spout maybe secured to a container thereby eflectually sealing the container.

An equally primary object of the present invention comprises the method of sealing and forming a container by providlng a suitable container; forming a neck adapted to be secured to the container; placing a cap on the neck; forming a seal between the cap and the neck; then hermetically securing the neck to the container.

Another and more specific object of the present invention is to rovide a sheet metal spout having a remova le closure sealed on one end thereof and provided with an opposite end constructed to be soldered or secured to a suitable container.

Still more specifically the present invention comprises a closure for varnish cans and the like which closure comprises an artiole of manufacture including a sheet metal neck provided on one end with a flanged portion and on the other end with a screw threaded portion, which screw threaded portion carries a threaded cap terminating in a flange carrying a gasket which forms a side seal when the flange is suitably distorted. Other and further objects of the present invention will in part be obvious and will in part be pointed out hereinafter in the specification following by reference to the accompanying drawings wherein like characters are used to represent like parts throughout the several figures thereof.

Figure 1 is a perspective view of the art1- cle of manufacture comprising the present invention.

Fig. 2 is a-sectional view illustrating the device prior to forming the side seal.

Fig. 3 is a sectional view showing the device soldered to the head of a suitable container.

Fig. 4 is a view illustrating one step in the mannerof breaking the seal.

Fig. 5 is an elevational view illustrating the next step in breaking the seal.

Fig. 6 is an elevation showing the completed container with the seal'broken ready to be opened. 1

Fig. 7 is a view showing an enlarged section of the seal.

Heretofore in the art of packaging varnishes and volatile fluids or oils it has been common to package the materials in metal containers such as cans or canisters and having one end of the container formed of relatively thin easily punctured sheet metal. It is customary to solder or otherwise secure a suitable screw capped neck on this thin head and the method of opening the package comprises removing the cap and puncturing the thin head within the portion inclosed by the neck. This type of package resents several difiiculties, one of which is t at an portion of the head is relatively frangib e, consequently easily punctured and thereby liable to be broken. Another dificulty resides in that in puncturing the hole within the neck it is customary to insert some instrument, such as a screw driver, and then pry over the end of the neck to rip the head within the neck. This rocedure sometimes loosens the neck and o tentimes destroys the screw threads. To obviate this diificulty various types of closures have been proposed including double seals wherein is rovided a stopper and also an outer seal. Tn removing the stopper the neck is often mutilated or destroyed and the functions of the double seal are thereby defeated.

The present invention overcomes the foregoing dificulties by providing in effect a com bine seal and closure in cooperation with a neck adapted to be secured by solder or otherwise to a suitable container. The neck portion may be screw threaded and may carry a screw threadedcap which terminates in a flange beneath which is a gasket ring. When the cap is screwed down tlghtly upon the neck the flange is distorted by suitable sealing dies to compress the gasket tightly against the side wall of the .neck thereby forming a hermetic seal between the cap and the neck. Preferably, Where the neck is formed of sheet metal, the lower end is flanged outwardly to permit the neck 'to be seated on the'head of a 'suitable container over a relatively large sized opening and the edge of theflange is secured to the metal head of the container by solder, welding, or other well known methods of joining metal. It-will be noted that when the neck is secured in position the package is suitably sealed. Where the type of side seal used is that disclosed in my application Serial No. 141,551, filed January 10, 1917, the seal may be broken by pounding inwardly the bead adjacent the cut away opening of the skirt and then pulling the gasket downwardly and out from between the bead and the side wall of the neg k. When this has been done the bead ma be used as a handle to unscrew the cap whereby the contents may be poured from the container. It will be noted from the foregoing that the present invention includes a method of sealing containers which consists in formin a suitable'member carrying the seal, which member is adapted to be secured to the container thereby forming a portion of the container and atthe same time completing the seals by the single operation which secures the member to the container. By this method-an economical procedure is obtained in that the neck carrying the seal may be formed as a separate article of manufacture and the canisters or containers may be completely constructed with filling openings therein so that the filled container is sealed by the single and simple operation of securing the neck in position.

Referring now more particularly to the drawings the container 1 is of the usual type and of any suitable contour and carries a head 2 which preferably is provided with an opening 4. The, article of manufacture comprises a neck preferably having a cylindrical side wall 5 which ma terminate at its upper end in screw threa s 6 formed in any well known manner, such as rolling or pressing. The lower end of the neck maybe flanged, as at 7, to facilitate and present a more or less flat surface adaptable forre ceiving and holdin the solder 8 whereby the flange is secure to the head 2 over the opening 4. It is obvious that any type of connectlon, such as welding or seaming may be used to, form this hermetic joint. The screw threads 6 are adapted to carry a screw threaded ca 9 which effectually closes the open end 0' the neck. -This cap preferably is constructed (as shown in Fig. 2) with a beadv 10 which carries a suitable gasket ring 11. This bead is adapted to be deformed to compress the gasket 11 against the cylindrical side wall 5, as is illustrated at 12, in Figs. 3 and 4. When the head is deformed, as at 12, a hermetic joint is effected between the cap and the neck. A portionof the side wall of the bead is cut away, as at '14, and by naeaaes bending the deformed bead inwardly, as at 15, Figs. 4: and 5, the gasket 11 is slightly released and may be pulled downwardly, as at 16, Fig. 5, whereby the gasket may be broken and a further pulling entirely removes the gasket to leave the parts in the condition illustrated as at 17, Fig. 6. When this condition is attained the screw cap may be easily unscrewed thereby opening the can.

Realizing that this invention is capable of embodiment in structures other than the specific disclosure herewith I desire that such disclosure shall be considered as illustrative and not in the limiting sense.

Having thus described my invention what I claim is:

1. An article of manufacture of the character described comprising a neck portion, a flange formed upon one end of said neck portion and adapted to be secured to the body of a suitable container, screw threads formed upon the opposite end of said neck portion, in combination with a removable cap screw threaded upon said screw threads, and a hermetic seal formed between the lower edge of said cap and the cylindrical side wall of said neck, said hermetic seal comprising a bead formed on the screw cap, a gasket beneath the bead and against the side wall of the container, and annular compression means comprising a portion of said bead and maintaining ald gasket tightly against the said cylindrical side wall. 2. An article of manufacture comprising a neck member adapted to be attached to a suitable container, in combination with a removable cap carried by said neck portion, the lower end of said cap comprising a bead, a suitable gasket within said bead and und'er radial compression toward the axis of the cap and between the-walls of said bead and the side walls of the said neck to form a hermetic seal between the said cap and the said neck.

' 3. As an article of manufacture, a metallic neck adapted. to be secured by solder or otherwise to a suitable container, a removable cap screw threaded upon said neck, a sealing bead formed on the lower end of said cap, a gasket under compression between said sealing bead and the side walls of said neck, and means whereby the removal of said asket is facilitated to permit the breaking 0 said seal to enable sald cap to be removed.

4. As an article of manufacture, a metallic neck adapted to be secured to a suitable container by solder or otherwise, a removable cap mounted upon said neck, a bead rovided on said cap, a gasket beneath said ead nd forming a hermetic seal between the side walls of said neck and said bead, said hermetic seal als preventing the removal of said cap from the said neck prior to the breaking of th e l.

5. The method of forming and sealing suitable containers and the like, which. method comprises providing a suitable container with a properly ized opening formed on one Wall thereof; forming a neck adapted to be secured to the said container and to cover the said opening; placing the cap on the said neck; providing a gasket. between said cap andsaid neck; distorting said cap to compress said gasket against said neck to form a. hermetlc seal; and then soldering said neck to said container over the said openings 6. The method of sealing and ferming suitable containers and the like, "which coniprises providing a suitable container; form'- ing a neck adapted to be secured to said container; placing a cap in position on said neck; providing a gasket between said cap and said neck; deforming said cap to compress said gasket to form a hermetic seal. between the gasket and said neck; and then uniting said necktto said container to cause said neck to become an integral part of said container.

HARRY TUWNSEND. 

